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Roundcube Webmail - Cross-Site Scripting Detection

🗓️ 28 Jul 2026 11:27:38Reported by KittySploitType 
kittysploit
 kittysploit
🔗 kittysploit.com👁 2 Views

Remote XSS in Roundcube via message_body() lets attackers steal and send victim emails.

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Refs
Code
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""A Cross-Site Scripting vulnerability in Roundcube through 1."""

from kittysploit import *
from lib.protocols.http.http_client import Http_client


class Module(Scanner, Http_client):
    __info__ = {
        'name': 'Roundcube Webmail - Cross-Site Scripting Detection',
        'description': 'A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails of a victim via a crafted e-mail message that abuses a Desanitization issue in message_body() in program/actions/mail/show.php.',
        'author': ['KittySploit Team'],
        'severity': 'critical',
        'tags': ['web', 'scanner', 'cve', 'cve2024', 'roundcube', 'xss', 'vkev', 'passive', 'kev', 'vuln'],
        'agent': {
            'risk': 'active',
            'effects': ['network_probe'],
            'expected_requests': 1,
            'reversible': True,
            'approval_required': False,
            'produces': ['tech_hints', 'risk_signals', 'endpoints'],
            'cost': 1.0,
            'noise': 0.3,
            'value': 1.0,
            'requires': {
                'min_endpoints': 0,
                'min_params': 0,
                'tech_hints_any': [],
                'tech_hints_all': [],
                'specializations_any': [],
                'risk_signals_any': [],
                'auth_session': False,
                'capabilities_any': [],
                'capabilities_all': [],
                'confidence_min': {},
                'confidence_min_any': {},
                'endpoint_pattern_any': [],
                'param_any': [],
                'api_surface_ready': False,
            },
            'chain': {
                'produces_capabilities': [
                    {
                        'capability': 'admin_surface',
                        'from_detail': '',
                    },
                ],
                'consumes_capabilities': [],
                'option_bindings': {},
                'suggested_followups': [],
            },
        },
        'references': [
            'https://github.com/roundcube/roundcubemail/releases',
            'https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8',
            'https://nvd.nist.gov/vuln/detail/CVE-2024-42009',
        ],
        'cve': 'CVE-2024-42009',
    }

    def run(self):
        path = '/'
        r = self.http_request(method='GET', path=path, allow_redirects=False)
        if not r or r.status_code != 200:
            return False
        body = r.text or ""
        body_any = ('Roundcube',)
        if any(m in body for m in body_any):
            self.set_info(
                severity='critical',
                reason='Roundcube Webmail - Cross-Site Scripting detected',
                path=path,
            )
            return True
        return False

Data

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28 Jul 2026 11:27Current
8.7High risk
Vulners AI Score8.7
CVSS 3.19.3
EPSS0.82882
SSVC
2